SSC MTS EXAM

Detailed explanation-1: -Carbon dioxide in the air can also provide the oxygen necessary for rusting. In the presence of water, carbon dioxide reacts to form carbonic acid. This electrolyte can speed up the rusting process and cause corrosion.

Detailed explanation-2: -The oxygen atoms bond with iron atoms, resulting in the formation of iron oxides. This weakens the bonds between the iron atoms in the object/structure. The reaction of the rusting of iron involves an increase in the oxidation state of iron, accompanied by a loss of electrons.

Detailed explanation-3: -Corrosion occurs in the presence of moisture. For example, when iron is exposed to moist air, it reacts with oxygen to form rust.